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https://www.readbyqxmd.com/read/29681160/particulated-autograft-cartilage-implantation-for-the-treatment-of-osteochondral-lesions-of-the-talus-a-novel-technique
#1
Connor Delman, John Wuellner, Chris Kreulen, Gregg Lundeen, Eric Giza
Osteochondral lesions of the talus often occur following ankle sprains and fractures. Operative intervention is typically required because of the diminished intrinsic repair capability of talar articular cartilage. Several techniques have evolved that emphasize replacing the defect with cartilage that closely mimics the biological properties of hyaline articular cartilage. The goals of operative treatment are resolution of symptoms, physiologic healing, and restoration of function while eliminating the need for further intervention...
April 1, 2018: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/29680335/the-sigmoid-notch-view-for-distal-radius-fractures
#2
Robin N Kamal, Fraser Leversedge, David S Ruch, Suhail K Mithani, Ilvy H F Cotterell, Marc J Richard
PURPOSE: This study defines the sigmoid notch view of the distal radius. Specifically, we tested the null hypothesis that there is no relationship between the subchondral stripe of bone seen on a sigmoid notch view of the distal radius and the articular surface of the sigmoid notch. METHODS: We used 44 wrist specimens for anatomic and fluoroscopic analysis. We measured the articular depth of the sigmoid notch from its deepest point and classified the shape of the sigmoid notch...
April 18, 2018: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29673849/relationship-between-intracapsular-fracture-patterns-and-arthroscopic-findings
#3
Ko Ito, Fumie Yamazaki, Kosuke Takahashi, Shinnosuke Nogami, Toshirou Kondoh, Alastair Goss
PURPOSE: To observe the superior joint compartment (SJC) using ultrathin arthroscopy in intracapsular condylar fracture (ICF) of the temporomandibular joint, describe the changes, and evaluate the relations among fracture pattern, arthroscopic findings, and clinical outcome. PATIENTS AND METHODS: Twenty patients with 27 ICFs were the subject group. Thirteen patients had unilateral ICF and 7 had bilateral ICF. The fracture patterns were classified into 9 categories, and all patients had arthroscopic examination of the traumatized joint at the time of definitive treatment...
March 27, 2018: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29669383/total-knee-arthroplasty-versus-osteochondral-allograft-prevalence-and-risk-factors-following-tibial-plateau-fractures
#4
Lasun O Oladeji, Tina K Dreger, Eli L Pratte, Charles A Baumann, James P Stannard, David A Volgas, Gregory J Della Rocca, Brett D Crist
Orthopaedic surgeons commonly have the misconception that patients with tibial plateau fractures will likely go on to posttraumatic knee arthritis requiring total knee arthroplasty (TKA). In younger patients, osteochondral allograft (OCA) transplantation is an alternative method to address posttraumatic knee arthritis. The purpose of this study was (1) to identify our institutional failure rate following tibial plateau open reduction and internal fixation (ORIF) (failure was defined as conversion to TKA or OCA); (2) to determine if there are patient- or injury-related risk factors predictive of failure; and (3) to characterize differences between patients treated with TKA versus those treated with OCA transplantation...
April 18, 2018: Journal of Knee Surgery
https://www.readbyqxmd.com/read/29667227/effects-of-knockout-of-the-receptor-for-advanced-glycation-end-products-on-bone-mineral-density-and-synovitis-in-mice-with-intra-articular-fractures
#5
Dongrim Seol, Yuki Tochigi, Ashley M Bogner, Ino Song, Douglas C Fredericks, Gail L Kurriger, Sonja M Smith, Jessica E Goetz, Joseph A Buckwalter, James A Martin
Our group employed the mouse closed intra-articular fracture (IAF) model to test the hypothesis that the innate immune system plays a role in initiating synovitis and post-traumatic osteoarthritis (PTOA) in fractured joints. A transgenic strategy featuring knockout of the receptor for advanced glycation end-products (RAGE -/- ) was pursued. The 42 and 84 mJ impacts used to create fractures were in the range previously reported to cause PTOA at 60 days post-fracture. MicroCT (µCT) was used to assess fracture patterns and epiphyseal and metaphyseal bone loss at 30 and 60 days post-fracture...
April 17, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29666736/intra-articular-entrapment-of-the-medial-epicondyle-following-a-traumatic-fracture-dislocation-of-the-elbow-in-an-adult
#6
Hicham G Abdel Nour, George S El Rassi, Jack C Daoud, Youssef G Hassan, Rami A Ayoubi, Nabih I Joukhadar
Medial epicondyle entrapment after an acute fracture dislocation of the elbow is a common finding in the pediatric population, but a rare finding in adults. We present a case of an adult patient diagnosed with a traumatic fracture dislocation of the elbow joint with intra-articular entrapment of the medial epicondyle. After initial evaluation, closed reduction was done. Stability testing after reduction showed an unstable joint; thus, open reduction and internal fixation was decided.
2018: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/29664804/temporary-bridge-plate-stabilization-of-unstable-elbow-fractures-and-dislocations
#7
David Edelman, Asif M Ilyas
Unstable fracture-dislocations of the elbow, and in particular the "terrible triad" injury consisting of an elbow dislocation with a fracture of the radial head and coronoid, are complex injuries that can be plagued and complicated by persistent instability. Acute and chronic instability is a difficult problem and is best managed early by avoidance and restoration of stability. A number of treatment options have been proposed to manage acute postfixation instability of the elbow joint. Traditional stabilization options include immobilization with splinting or casting, cross-articular pinning, and external fixation (hinged or static), followed by early physical therapy...
April 11, 2018: Techniques in Hand & Upper Extremity Surgery
https://www.readbyqxmd.com/read/29661068/correlation-between-radiological-parameters-and-functional-outcomes-in-patients-older-than-60-years-of-age-with-distal-radius-fracture
#8
Rodrigo Gutiérrez-Monclus, Héctor Gutiérrez-Espinoza, Jonathan Zavala-González, Cristian Olguín-Huerta, David Rubio-Oyarzún, Felipe Araya-Quintanilla
BACKGROUND: The relationship between radiographic and functional outcomes is controversial in the elderly. The objective of this study is to determine whether there is a correlation between functional outcome and acceptable distal radius fracture (DRF) alignment in patients older than 60 years of age. METHODS: This correlation study was carried out at the Central Metropolitan Health Service of Chile. A total of 180 patients diagnosed with extra-articular DRF, according to the AO classification, were prospectively recruited...
April 1, 2018: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/29658979/mini-fragment-fixation-is-equivalent-to-bicortical-screw-fixation-for-horizontal-medial-malleolus-fractures
#9
Adam M Wegner, Philip R Wolinsky, Michael A Robbins, Tanya C Garcia, Derek F Amanatullah
Horizontal fractures of the medial malleolus occur through application of valgus or abduction force through the ankle that creates a tension failure of the medial malleolus. The authors hypothesize that mini-fragment T-plates may offer improved fixation, but the optimal fixation construct for these fractures remains unclear. Forty synthetic distal tibiae with identical osteotomies were randomized into 4 fixation constructs: (1) two parallel unicortical cancellous screws; (2) two parallel bicortical cortical screws; (3) a contoured mini-fragment T-plate with 2 unicortical screws in the fragment and 2 bicortical screws in the shaft; and (4) a contoured mini-fragment T-plate with 2 bicortical screws in the fragment and 2 unicortical screws in the shaft...
April 16, 2018: Orthopedics
https://www.readbyqxmd.com/read/29643907/fixation-of-unstable-distal-radius-fractures-by-using-expandable-intramedullary-nailing-system-in-adult-patients
#10
Murat Calbiyik
Objective: To present our experience on intramedullary nailing device Sonoma Wrx (Sonoma Orthopedic Products Inc., Santa Rosa, CA, USA) used for internal fixation of extra-articular or simple intra-articular distal radius fractures in adult population. Methods: This study was conducted from February 2011 to October 2016. A total of 48 patients (mean age 47.3±5.6 years, 35.4% females) with distal radius fracture, who underwent intramedullary distal radius fixation by using Sonoma Wrx were included in this retrospective study...
January 2018: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/29643522/-three-dimensional-architecture-of-intraosseous-vascular-anatomy-of-the-hamate-a-micro-computed-tomography-study
#11
D Y Wang, X Li, Z C Shen, P L Gu, Y R Pei, G Zeng, H J Leng, W G Zhang
OBJECTIVE: To obtain three-dimensional intraosseous artery of the hamate and to provide the vascular anatomy basis of hamate fracture fixation. METHODS: PbO (lead monoxide, Sinopharm Chemical Reagent Beijing Co. Ltd) was ground into particles less than 40 μm and suspended in turpentine oil (Chemical Reagent Beijing Co. Ltd) at ratios of 1 g : 1.5 mL, 1 g : 1 mL and 1 g : 0.5 mL. Three specimens were investigated. Brachial arteries were cannulated and perfused with lead-based contrast agent...
April 18, 2018: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/29628712/best-care-paradigm-to-optimize-functionality-after-extra-articular-distal-humeral-fractures-in-the-young-patient
#12
REVIEW
Mark S Ayoub, Ivan S Tarkin
For younger patients with extra-articular distal humerus fractures closed management is plagued with high rates of malunion, suboptimal functional outcomes, extended immobilization with loss of early motion, a delay in return to work, and a general period of lost productivity. Surgical management offers an appealing alternative. Maintaining respect for the triceps musculature and minimizing iatrogenic injury to the radial nerve are primary concerns with operative treatment. Accordingly, use of a triceps-sparing approach and single column plating may be the optimal treatment paradigm in the young patient presenting with an extra-articular distal humerus fracture...
March 2018: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/29628132/biomechanics-of-osteochondral-impact-with-cushioning-and-graft-insertion-cartilage-damage-is-correlated-with-delivered-energy
#13
Alvin W Su, Yunchan Chen, Yao Dong, Dustin H Wailes, Van W Wong, Albert C Chen, Shengqiang Cai, William D Bugbee, Robert L Sah
Articular cartilage is susceptible to impact injury. Impact may occur during events ranging from trauma to surgical insertion of an OsteoChondral Graft (OCG) into an OsteoChondral Recipient site (OCR). To evaluate energy density as a mediator of cartilage damage, a specialized drop tower apparatus was used to impact adult bovine samples while measuring contact force, cartilage surface displacement, and OCG advancement. When a single impact was applied to an isolated (non-inserted) OCG, force and surface displacement each rose monotonically and then declined...
March 30, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29627848/fixation-augmentation-using-calcium-phosphate-bone-substitute-improves-outcomes-of-complex-tibial-plateau-fractures-a-matched-cohort-study
#14
Matthieu Ollivier, Yassine Bulaïd, Christophe Jacquet, Sebastien Pesenti, Jean-Noel Argenson, Sebastien Parratte
INTRODUCTION: Injectable cements have been developed to improve fixation's stability and thus obtain early return to adequate joint function. We aimed to compare post-operative radiographic and clinical outcomes of patients suffering from a complex tibial plateau fracture (TPF) fixed with calcium-phosphate bone substitutes (CPBS) augmentation to a matched group of patients with identical fracture pattern, treated with the same fixation's type, but augmented with bone grafting. METHODS: After local ethic committee approval, we retrospectively identified in a prospectively collected database, patients with complex comminuted metaphyseal and epiphysial bicondylar TPF (Schatzker type VI) admitted in our emergency department between January 2011 and December 2013...
April 7, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29626236/prospective-study-of-comminuted-articular-distal-radius-fractures-stabilized-by-volar-plating-in-the-elderly
#15
Daniel Martinez-Mendez, Alejandro Lizaur-Utrilla, Joaquin de Juan-Herrero
PURPOSE: The objective was to assess the ability of the volar locking plate to maintain the radiographic parameters over the time in elderly patients with complex intra-articular distal radius fractures. METHODS: Prospective cohort of 66 consecutive patients with mean age of 68 (range 60-81) years and AO type C fractures treated with volar locking plate. Radiographic measurements were performed pre and post-operatively at each follow-up. Clinical assessment was made by Patient-Rated Wrist Evaluation scores, Disabilities of the Arm, Shoulder and Hand score, range of motion, and grip strength...
April 7, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29625645/complications-of-proximal-interphalangeal-joint-injuries-prevention-and-treatment
#16
REVIEW
Sirichai Kamnerdnakta, Helen E Huetteman, Kevin C Chung
Proximal interphalangeal joint injuries are one of the most common injuries of the hand. The severity of injury can vary from a minor sprain to a complex intra-articular fracture. Because of the complex anatomy of the joint, complications may occur even after an appropriate treatment. This article provides a comprehensive review on existing techniques to manage complications and imparts practical points to help prevent further complications after proximal interphalangeal joint injury.
May 2018: Hand Clinics
https://www.readbyqxmd.com/read/29625614/a-novel-implant-removal-technique-by-endoscopy
#17
Chang Heng Liu, Wen Lin Yeh, Ping Jui Tsai, Kuo Feng Fan, Hung Wei Cheng, Jian Ming Chen
BACKGROUND: Routine implant removal after fracture healing remains controversial. However, it has been suggested that implant removal should be performed in cases of joint impingement, painful scar adhesion, and implant malposition. Entrance selection is relatively critical in patients with poor soft tissue conditions or sloughing coverage. We propose an innovative technique using endoscopy. METHODS: Consecutive surgeries of endoscopic implant removal performed between 2005 and 2016 by a single experienced arthroscopic surgeon were included...
April 6, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29619397/treatment-of-failed-articular-cartilage-reconstructive-procedures-of-the-knee-a-systematic-review
#18
REVIEW
Joseph D Lamplot, Kevin A Schafer, Matthew J Matava
Background: Symptomatic articular cartilage lesions of the knee are common and are being treated surgically with increasing frequency. While many studies have reported outcomes following a variety of cartilage restoration procedures, few have investigated outcomes of revision surgery after a failed attempt at cartilage repair or reconstruction. Purpose: To investigate outcomes of revision cartilage restoration procedures for symptomatic articular cartilage lesions of the knee following a previously failed cartilage reconstructive procedure...
March 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29619121/intra-articular-fracture-of-the-distal-part-of-the-triquetrum-within-the-pisotriquetral-joint-case-report-and-review-of-literature
#19
V Athanasiou, A Panagopoulos, I D Iliopoulos, I Vrahnis, G Diamantakis, P Kraniotis, M Tyllianakis
Background: Intra-articular fractures of the distal part of the triquetrum within the pisotriquetral joint are uncommon, and can be associated with tears of the dorsal carpal ligaments, pisiform subluxation and/or FCU dislocation. Their diagnosis is difficult and requires a high clinical suspicion and a proper radiological examination including oblique wrist x-rays, computed tomography and MRI scan. These fractures can be delayed diagnosed due to late presentation thus leading to painful nonunion, persistent instability and late pisotriquetral arthritis...
2018: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/29613834/incidence-of-osteochondritis-dissecans-in-adults
#20
Jennifer M Weiss, Kevin G Shea, John C Jacobs, Peter C Cannamela, Ian Becker, Mark Portman, Jeffrey I Kessler
BACKGROUND: Osteochondritis dissecans (OCD) has frequently been described in children and adolescents, but cases of OCD in adults are certainly encountered. Little has been published on the epidemiology of OCD in adult patients. PURPOSE: To assess the frequency of OCD lesions in adults and assess the risk by age, sex, and ethnicity. STUDY DESIGN: Descriptive epidemiology study. METHODS: The authors assessed all patients aged 20 to 45 years from the entire database of patients enrolled as members of Kaiser Permanente Southern California from January 2011 until December 2013...
April 1, 2018: American Journal of Sports Medicine
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